Air vent cover



FIG. 1 is a rear perspective view of my new design for an air vent cover;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view of FIG. 3;

FIG. 5 is a right side view of FIG. 3;

FIG. 6 is a top view of FIG. 3; and,

FIG. 7 is a bottom view of FIG. 3. 

The ornamental design for an air vent cover, as shown and described. 